A Novel Three-phase Buck-type Rectifier and Its Analysis

作者：Xiao Hongxia; Zhang Cuijie; Liu Bin; Cai Jinqi; Li Jun

来源：2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018, 2018-11-04 To 2018-11-07.

DOI：10.1109/PEAC.2018.8590284

• Duty ratios
• High frequency HF
• High-frequency switches
• Input current
• Low-frequency
• Output voltages
• Pfc rectifiers
• Rectifier

A new three-phase buck-type PFC rectifier is presented in this paper. The efficiency is improved since only two of the switches are working at high frequency while the rest are in the low-frequency state. Firstly, the various switching states of the PFC rectifier are analyzed and the working rules of the two high-frequency switches are illustrated. On one hand, the two high-frequency switches performance as the ordinary BUCK circuit to guarantee the stability of the output voltage, on the other hand, by adjusting duty ratios of high-frequency switches, the three-phase input current is controlled. Then, the modulation is discussed and the design of corresponding controller is given. Finally, the effectiveness of the buck-type PFC rectifier is verified through simulations and experiments.

• 出版日期2018
• 单位南昌航空大学